Joseph a



(No Model.)

J. A. KLOEB.

GAS BURNER.

No. 591,046, l Patented Oct.. 5,1897.

I lill M /5 /J i A g 4 1 8 .9 l s f lINiTnD STATES PATENT Turroni.

. JOSEPH A. KLOEB, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OF ONE-HALF TO CARL J. MESS, OF SAME PLACE.

GAS-BURN ER.

SPECIFICATION forming part of Letters Patent No. 591,046, dated October 5, 1897.

Application filed February 20, 1897. Serial No. 624,297. (No model.) I

T 1f/ZZ whom, it may concern:

Be it known that I, Josnrrr A. KLonB, a citizen of the United States, residing at Washington, in the District of Columbia, have invented a new and useful Gras-Burner, of which the following is a'speciiication.

-My invention relates to gaseburners particularly adapted for use in connection with heating and analogous devices; and the object in view is to provide a construction and arrangement of parts whereby with a single burner the desired amount of heat may be produced by the use of an orice (for introducing the gas into the mixer) which is sufciently diminutive in size to prevent back pressure.

It has been the practice heretofore to increase the size or diameter' of the orifice through which the gas is supplied in order to increase the heat produced by the burner, the amount of heat being proportionate to the amount of gas consumed, but an efficient orifice must be of such'a size as to produce a partial vacuum in the mixer in order to inso size of the orifice, with the resulting disadduct the necessary amount of air, it being obvious that the efficiency of the burner depends greatly upon the intimate mixture of the gas with a sufcient quantity ofair to contain the necessary amount of oxygen. Hence when the orifice is increased beyond a certain diameter the pressure under which the gas is discharged into the mixer is diminished, (assuming that the fuel is supplied at a uniform pressure,) and hence the induction of air is reduced and the efficiency of the burner is proportionately diminished. In addition to this disadvantage of increasing the diameter of the orice through which the gas is supplied to the mixer, back pressure is liable to ensue, thereby still further interfering with the operation of the device. A

In o-rder to overcome the above disadvantages, the expedient of multiplying the number of burnershas been tried, but aside from the item of expense incident to thislplan it frequently happens that there is only suficient space in the furnace or article to be heated for a single burner of the standard size, and therefore the only alternative is to increase the iiow of gas by magnifying the vantages above named. In order to overcome these disadvantages, I have devised a construction of burner adapted to be used in place of the ordinary or standard size burners now in common use, said improved burner having a capacity which is a multiple of that of the ordinary forms of burners, but wherein the orifice through which gas is discharged into the mixer may be as small as desired. In other words, I have devised a construction of burner whereby the amount of gas consumed `may be varied or multiplied to the de-V sired extent without the disadvantages incident to increasing the size of the opening through which the gas is supplied.

A further Yobject of my invention is to prolof the same, taken in the plane of and axially through two tubes which form members of the mixer. Fig. 3 is a vertical central sec tion of the burner-cap and contiguous portion of the mixer to show the disk-valve in roperative relation with the air-inlet openings of the burner-cap. Fig. 4 is a horizontal section of the mixer-tubes in the plane of the means whereby the air-inlet openings thereof are controlled to vary the influx of air. Fig. 5 is an inverted plan view of the disk-valve whereby the air-inlet openings of the burnercap are controlled. Fig. 6 is an inverted plan view of the burner-cap detached.

Similar numerals of reference indicate cor responding parts in all the figures of the drawings.

In the construction illustrated in the drawings the receiver or f ucl-chamber l is adapted to be of a size suitable for direct attachment to a common or standard size of gas-supply conveyer 2, said receiver being tted with a IOO removable head 3, carrying a mixer which consists of a plurality of mixer-tubes 4, the head 3 being detachable from the receiver in order to facilitate the replacement of the mixer by others varying therefrom in the diameter of their mixer-tubes.`

Fitted in the lower ends of the mixer-tubes are throttling-blocks 5, having gas-supply oriiices of such diameter as to prevent back pressure from the mixer and cause the gas to be discharged from the receiver into the mixer-tubes with such force as to produce an eflicient partial vacuum contiguous to the airinlet openings 7 in said tubes, these air-inlet openings being controlled by annular slides S, fitted for vertical movement upon the tubes and adapted to be adjusted to expose the desired portions of the areas of the openings. Said slides are also provided with securing devices, such as set-screws 9, adapted to impinge against the exterior surfaces of the tubes to lock the slides at the desired adjustment.

The mixer-tubes communicate at their upper ends with a burner-cap 10 of any desired construction, preferably trunco-conical with a serrated terminal edge, the connection between the cap and the mixer-tubes being by means of a slip-joint,7 consisting of smooth openings in the floor of the burner-cap, loosely fitted upon slightly-tapered portions of the mixer-tubes and adapted to be unseated or detached by an upward movement of the cap.

ln the floor of the burner-cap are formed air-inlet openings ll, any desired number of which may be employed, and litted to slide upon the mixer-tubes below the plane of the bottom of the cap is a disk-valve 12, coextensive with the bottom of the cap and adapted when arranged in contact with the latter to entirely close the openings 1l and exclude air at that point. When it is desired to supply oxygen to the flame at the base of the burner-cap, this disk is adjusted downwardly to form a slight space between its upper surface and the bottom of the cap, and thus expose the openin gs ll, and by varying the vertical position of the disk more or less air may be admitted to the burner-cap.

Any suitable means may be employed for securing the disk at the desired adjustment, such as the set-screws 13, shown on the depending collars 14, which slide upon the mixer-tubes.

From the above description it will be seen that by using an orifice 6 which is sufficiently small to avoid the disadvantages hereinbefore described as incident to an enlarged oriiice the amount of fuel supplied to the burner may be varied to produce the desired amount of heat, and at the same time an economical consumption of the fuel is insured by the fact that each member or tube of the mixer is exposed at all sides and is provided with an annular series of air-inlet openings, Whereby the admixture of air is complete and efficient. In other words, while the mixer comprises a plurality of members and is thus increased in the matter of the heat produced in accordance with the number of members, each mixer operates independently of the others and is as fully efficient as could be a single mixer, as in the ordinary practice, without any of the disadvantages due to an incomplete commingling of combustion-supporting agent with the fuel. Thus I have provided a plurality of mixer-tubes in communication with a common gas receiver which is adapted to be connected with an ordinary gas-supply pipe to replace a single burner or a single-mixer burner of the ordinary construction, and the mixer-tubes are so arranged in contiguity that the flames proceeding therefrom are combined to form a single flame, this combination being facilitated by the cap l0 when the latter is employed in connection with the mixer-tubes. The mixer-tubes are preferably arranged in an annular series around a common center to provide for the plural-mixer burner constituting my invention, being arranged practically in the space ordinarily occupied by a single-mixer burner. This is made possible by the fact that the cross-sectional areas of the mixer-tubes need not be individually extensive, especially when the gas-orifices are made of a diameter not exceeding three thirtyseconds of an inch, this being the maximum efficient size.

The removability of the head of the receiver materially facilitates the replacement and interchanging of throttling-plugs which are removably fitted in the lower ends of the mixer-tubes, the drawings showing these plugs screw-threaded into said tubes.

Various changes in the form, proportion, and the minor details of construction may be resorted to Without departing from the spirit or sacrificing any of the advantages of this invention.

Having described my invention, what I claim isl. A gas-burner having a plurality of mixertubes provided with independent gas -inlet orifices and contiguous to cach other, and equidistant from a common point, openings for the admission of a combustion-supporting agent, said tubes being contiguous to combine the flames issuing therefrom, and a common burner-cap 10 into which the flames issuing from the several tubes are discharged, the same being removably fitted upon and supported by the tubes, substantially as specified.

2. A gas-burner having areceiver provided with a removable head, a plurality of mixertubes supported by the said head and arranged contiguous to each other to combine their flames, and plugs having gas-inlet oriices removably iitted in the lower ends of the tubes, said tubes being provided with lateral air-inlet openings, substantially as specified.

3. The herein-described gas-burner comprising a plurality of contiguous mixer-tubes IOO IIO

communicating thro ugh red uced gas-inlet orifrees With a common receiver, and each provided With lateral air-inlet openings, controlling devices for varying the areas of said air-inlet openings, a common cap for the mixer-tubes whereby the 'flames discharged therefrom are combined, said cap having openings in its floor to receive the mixertubes and being contracted toward its open outer end, and also having its floor extended beyond the remote sides of the mixer-tubes and provided with air-inlet openings, a diskvalve coextensive With the perforated floor of the cap, and provided With a plurality of openings and alined collars, corresponding in number with the mixer-tubes and tted there- JOSEPH A. KLOEB.

Vitnesses:

JOHN H. Sie-GERS, D. P. WOLHAUPTER. 

